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| Phone | Kyocera 2135 | Ericsson T28 World | Siemens CF75 | Ericsson R520 | Nokia E50 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Not yet released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? | ? | ? | ? |
| Display Resolution & Type | ? | ? |
128 x 160 pixels LCD (STN) |
? |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 925 mAh | 500 mAh | 600 mAh | ? | 970 mAh |
| Processor | ? | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | Yes | - | 1 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | - | - | QCIF (176 x 144) |
| Front Camera | - | - | - | - | - |
| Weight |
4.7 oz (133g) |
3.14 oz (89g) |
3.17 oz (90g) |
4.23 oz (120g) |
3.67 oz (104g) |
| Dimensions |
5.07" x 1.89" x 1.02" (129 x 48 x 25.9 mm) |
3.9" x 2" x 0.6" (99 x 51 x 15.2 mm) |
3.43" x 1.73" x 1.26" (87 x 44 x 32 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
4.45" x 1.71" x 0.61" (113 x 43 x 15.5 mm) |
| Form Factor | Slab | Flip | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) | S60 (Symbian) |
| Network Bands |
CDMA: 850, 1900 AMPS: 850 |
GSM: 900, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
| Data Technology | - | - | EDGE | GPRS | EDGE |
| Features | |||||
| Accessibility | |||||
| Multiple Languages | Yes | - | Yes | Yes | n/a |
| Alerts | |||||
| Extra Display | - | - | Yes | - | - |
| Ringer Profiles | - | Yes | - | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | - | - |
Yes HSP, Sync, OPP, DUN |
Yes Classic Audio |
| Infrared (IR) | - | - | Yes | Yes | Yes |
| USB | - | - | Yes | - | Yes |
| Contacts | |||||
| Picture ID | - | - | - | - | n/a |
| Voice Dialing | - | Yes | - | Yes | n/a |
| Customization | |||||
| Changeable Body Plates | Yes | - | - | - | - |
| Custom Graphics | - | - | Yes | - | n/a |
| Custom Ringtones | Yes | Yes | Yes | Yes | n/a |
| Real-Music Ringers | - | - | - | - | n/a |
| Data & Network | |||||
| Data Tethering | Yes | Yes | Yes | Yes | n/a |
| WAP / Web Browser | Yes | - | Yes | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | - | Yes | Yes | n/a |
| Side Keys | - | Yes | Yes | Yes | Yes |
| Memory | |||||
| Memory Card Slot | - | - | - | - | Yes |
| Messaging | |||||
| Email Client | - | - | Yes | - | n/a |
| EMS / Picture Messaging | - | - | Yes | - | n/a |
| Instant Messaging | - | - | - | - | n/a |
| MMS | - | - | Yes | - | n/a |
| Text Messaging Templates | Yes | - | Yes | Yes | n/a |
| Music | |||||
| Music Player | - | - | - | - | n/a |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | Yes | n/a |
| Calendar | - | - | Yes | Yes | n/a |
| To-Do List | - | - | Yes | - | n/a |
| Voice Memo | - | - | Yes | Yes | n/a |
| Software | |||||
| Games | Yes | Yes | Yes | Yes | n/a |
| Java (J2ME) | - | - | Yes | - | n/a |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | - | - | - | n/a |
| Push-To-Talk | - | - | Yes | - | Yes |
| Speaker Phone | - | - | Yes | Yes | Yes |
| Kyocera 2135 | Ericsson T28 World | Siemens CF75 | Ericsson R520 | Nokia E50 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Kyocera 2135 | Ericsson T28 World | Siemens CF75 | Ericsson R520 | Nokia E50 |
